EP0710846A3 - Apparatus and method for generating a signal representative of total harmonic distortion in waveforms of an A/C electrical system - Google Patents
Apparatus and method for generating a signal representative of total harmonic distortion in waveforms of an A/C electrical system Download PDFInfo
- Publication number
- EP0710846A3 EP0710846A3 EP95116899A EP95116899A EP0710846A3 EP 0710846 A3 EP0710846 A3 EP 0710846A3 EP 95116899 A EP95116899 A EP 95116899A EP 95116899 A EP95116899 A EP 95116899A EP 0710846 A3 EP0710846 A3 EP 0710846A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- waveforms
- generating
- electrical system
- signal representative
- harmonic distortion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/16—Spectrum analysis; Fourier analysis
- G01R23/20—Measurement of non-linear distortion
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Complex Calculations (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/334,506 US5487016A (en) | 1994-11-04 | 1994-11-04 | Apparatus for generating a signal representative of total harmonic distortion in waveforms of an A/C electrical system |
| US334506 | 1994-11-04 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0710846A2 EP0710846A2 (en) | 1996-05-08 |
| EP0710846A3 true EP0710846A3 (en) | 1997-04-16 |
| EP0710846B1 EP0710846B1 (en) | 2002-07-31 |
Family
ID=23307540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95116899A Expired - Lifetime EP0710846B1 (en) | 1994-11-04 | 1995-10-26 | Apparatus for generating a signal representative of the total harmonic distortion in waveforms of an AC electrical system |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US5487016A (en) |
| EP (1) | EP0710846B1 (en) |
| JP (1) | JPH08278333A (en) |
| AU (1) | AU696704B2 (en) |
| BR (1) | BR9504910A (en) |
| CA (1) | CA2162073C (en) |
| DE (1) | DE69527592T2 (en) |
| MX (1) | MX9504639A (en) |
| NZ (1) | NZ280204A (en) |
| PH (1) | PH31479A (en) |
| ZA (1) | ZA959214B (en) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5736847A (en) * | 1994-12-30 | 1998-04-07 | Cd Power Measurement Limited | Power meter for determining parameters of muliphase power lines |
| US5691897A (en) * | 1995-05-30 | 1997-11-25 | Roy-G-Biv Corporation | Motion control systems |
| US5789928A (en) * | 1995-11-01 | 1998-08-04 | Sundstrand Corporation | Circuit and method for discriminating the source of waveform distortion in an electric power generation and distribution system |
| US5706204A (en) * | 1996-02-28 | 1998-01-06 | Eaton Corporation | Apparatus for triggering alarms and waveform capture in an electric power system |
| US5890097A (en) * | 1997-03-04 | 1999-03-30 | Eaton Corporation | Apparatus for waveform disturbance monitoring for an electric power system |
| US6246965B1 (en) * | 1998-10-01 | 2001-06-12 | Lucent Technologies Inc. | Pre-distortion tuning for analog lasers |
| FR2786872B1 (en) * | 1998-12-07 | 2001-04-13 | Francois Mougeot | METHOD FOR DETECTING THE LEVELS OF HARMONIC DISTURBANCES OF AN ELECTRICAL NETWORK AND ITS DEVICE |
| US6157552A (en) * | 1999-12-20 | 2000-12-05 | General Electric Company | Sub-harmonic detection and control system |
| GB0120748D0 (en) | 2001-08-25 | 2001-10-17 | Lucas Aerospace Power Equip | Generator |
| US7532955B2 (en) * | 2002-02-25 | 2009-05-12 | General Electric Company | Distributed protection system for power distribution systems |
| US7747356B2 (en) | 2002-02-25 | 2010-06-29 | General Electric Company | Integrated protection, monitoring, and control system |
| US7058482B2 (en) * | 2002-02-25 | 2006-06-06 | General Electric Company | Data sample and transmission modules for power distribution systems |
| AU2003231962A1 (en) * | 2002-02-25 | 2003-09-09 | General Electric Company | External clock to obtain multiple synchronized computer |
| US7111195B2 (en) * | 2002-02-25 | 2006-09-19 | General Electric Company | Method and system for external clock to obtain multiple synchronized redundant computers |
| US7636616B2 (en) * | 2003-02-25 | 2009-12-22 | General Electric Company | Protection system for power distribution systems |
| US7039822B2 (en) * | 2003-02-27 | 2006-05-02 | Promos Technologies Inc. | Integrated circuit memory architecture with selectively offset data and address delays to minimize skew and provide synchronization of signals at the input/output section |
| GB2401467B (en) * | 2003-05-09 | 2006-01-25 | Autoliv Dev | Improvements in or relating to a movable or removable unit for a motor vehicle |
| US7469190B2 (en) * | 2005-07-01 | 2008-12-23 | Square D Company | Automated system approach to analyzing harmonic distortion in an electric power system |
| FR2903190B1 (en) * | 2006-06-29 | 2008-08-22 | Airbus France Sas | METHOD OF INSTANTLY DETERMINING SIGNAL DISTORTION RATES ON AN ALTERNATIVE ELECTRICAL NETWORK, AND ASSOCIATED DEVICE |
| US8045605B2 (en) * | 2006-12-25 | 2011-10-25 | Advantest Corporation | Jitter amplifier circuit, signal generation circuit, semiconductor chip, and test apparatus |
| DE102007046318A1 (en) * | 2007-09-27 | 2009-04-02 | Robert Bosch Gmbh | scanning |
| DE102007054306B4 (en) * | 2007-11-08 | 2010-04-22 | Siemens Ag | Method for analyzing alternating voltage signals |
| US9077208B2 (en) | 2011-12-30 | 2015-07-07 | Schneider Electric USA, Inc. | Method of detecting instability in islanded electrical systems |
| US8712066B1 (en) | 2013-03-14 | 2014-04-29 | Rockford Corporation | Audio signal clip detection |
| CN107543962B (en) * | 2017-08-11 | 2020-03-31 | 安徽大学 | Calculation method of dominant inter-harmonic frequency spectrum distribution |
| CN114705913B (en) * | 2022-04-12 | 2024-01-09 | 上海赢双电机科技股份有限公司 | Harmonic analysis method of rotary transformer |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4964055A (en) * | 1987-11-25 | 1990-10-16 | Cooper Industries, Inc. | Hand-held power system harmonic distortion meter with selective activation of display |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54126061A (en) * | 1978-02-16 | 1979-09-29 | Nakamichi Kenkyusho | Divider circuit |
| JPS55130222A (en) * | 1979-03-30 | 1980-10-08 | Takayoshi Hirata | Generator of composite pulse for distortion measurement |
| US4672555A (en) * | 1984-10-18 | 1987-06-09 | Massachusetts Institute Of Technology | Digital ac monitor |
| JPH083507B2 (en) * | 1986-08-06 | 1996-01-17 | 株式会社アドバンテスト | Signal remover |
| US4918381A (en) * | 1989-04-06 | 1990-04-17 | Hewlett-Packard Company | Automated method for determining total harmonic distortion |
| US5072187A (en) * | 1990-06-29 | 1991-12-10 | Digital Equipment Corporation | Method and apparatus for determining the total harmonic distortion and power factor of a non-linear load circuit |
| US5144226A (en) * | 1991-05-17 | 1992-09-01 | Core Industries | Multi-mode measuring system |
| US5170114A (en) * | 1991-09-11 | 1992-12-08 | Myron Zucker, Inc. | Harmonimeter input circuit and methods of constructing and utilizing same |
| US5260647A (en) * | 1991-09-18 | 1993-11-09 | Hewlett-Packard Company | Measuring an AC signal value with sampling when the sampling interval does not exactly divide the AC signal's period |
| US5298888A (en) * | 1992-08-21 | 1994-03-29 | Basic Measuring Instruments | Harmonic measuring instrument for AC power systems with latched indicator means |
| US5300924A (en) * | 1992-08-21 | 1994-04-05 | Basic Measuring Instruments | Harmonic measuring instrument for AC power systems with a time-based threshold means |
| US5365164A (en) * | 1992-08-24 | 1994-11-15 | Tci (Trans-Coil, Inc.) | Harmonic analyzer and methods of constructing and utilizing same |
| US5343404A (en) * | 1992-11-12 | 1994-08-30 | Maritec Corp. | Precision digital multimeter and waveform synthesizer for multi-signals with distorted waveforms embedded in noise |
-
1994
- 1994-11-04 US US08/334,506 patent/US5487016A/en not_active Expired - Lifetime
-
1995
- 1995-10-05 PH PH51433A patent/PH31479A/en unknown
- 1995-10-06 AU AU33068/95A patent/AU696704B2/en not_active Ceased
- 1995-10-11 NZ NZ280204A patent/NZ280204A/en not_active IP Right Cessation
- 1995-10-26 EP EP95116899A patent/EP0710846B1/en not_active Expired - Lifetime
- 1995-10-26 DE DE69527592T patent/DE69527592T2/en not_active Expired - Lifetime
- 1995-10-31 ZA ZA959214A patent/ZA959214B/en unknown
- 1995-11-01 BR BR9504910A patent/BR9504910A/en not_active IP Right Cessation
- 1995-11-03 CA CA002162073A patent/CA2162073C/en not_active Expired - Fee Related
- 1995-11-03 MX MX9504639A patent/MX9504639A/en not_active IP Right Cessation
- 1995-11-03 JP JP7309974A patent/JPH08278333A/en not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4964055A (en) * | 1987-11-25 | 1990-10-16 | Cooper Industries, Inc. | Hand-held power system harmonic distortion meter with selective activation of display |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0710846A2 (en) | 1996-05-08 |
| AU3306895A (en) | 1996-05-09 |
| PH31479A (en) | 1998-11-03 |
| DE69527592D1 (en) | 2002-09-05 |
| JPH08278333A (en) | 1996-10-22 |
| BR9504910A (en) | 1997-09-02 |
| DE69527592T2 (en) | 2003-04-10 |
| CA2162073A1 (en) | 1996-05-05 |
| MX9504639A (en) | 1997-06-28 |
| AU696704B2 (en) | 1998-09-17 |
| US5487016A (en) | 1996-01-23 |
| NZ280204A (en) | 1997-04-24 |
| ZA959214B (en) | 1996-05-27 |
| CA2162073C (en) | 2000-06-27 |
| EP0710846B1 (en) | 2002-07-31 |
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